@Kona yeah Logan, I have the fat tire version of that and use it hauling my camping gear on the beach. It does a pretty good job toting my tent, canopy, cooler, bait and tackle box across the sand.
Added a shelve on the Okie range caddie from parts around the garage.
1-1/2 x 1-1/2 thin walled angle, some particular board and self-tapping screws.
Have used it a couple time now and now rifles can be strapped on individually.
That’s not patented yet is it???
Fantastic idea, impressive, simplistic with only a couple moving parts.
Having seen it in action, gotta say it works well.